Continious short beeping when turning on pc

Hello,

I've got a serious problem with my pc, while it is on window it restart its self, while booting up it says system halted.so i decided to reboot again.then nothings hapend it is not working.continous strange short beeping happening.its not usual beep ive heard,first time to enconter this trouble.its not video or memory problem peeb.hope some one give me advice specially those who encontered this trouble already.thanks a lot folks..